Fish silage in black bass (Micropterus Salmoides) feed as an alternative to fish meal

Abstract

The objective of this study was to use the residues of fermented sardine to elaborate the acid fish silage and its use in feed for aquaculture. Biological assay was performed by feeding largemouth bass (Micropterus salmoides) fingerlings (initial weight 22g), with extruded diets (41% crude protein; 3,600 kcal/kg digestible energy) containing 0.0, 7.5, 10.0, 12.5, or 15.0% of fish silage in partial substitution to the fish meal. The feed conversion ratio and weight gain for the treatments were: 1.26 and 15.76g; 1.11 and 17.07g; 1.19 and 17.81g; 1.18 and 19.83g; 1.47 and 14.64g, respectively. No significant differences (P<0.05) were detected among the treatments. Results indicated that it was possible to use up to 15% of acid fish silage as partial substitute for fish meal in the formulation of carnivorous fish feed.

Oil from the acid silage of Nile tilapia waste: Physicochemical characteristics for its application as biofuel

“…Fish silage is defined as a liquid product obtained from the whole fish or parts of it, to which acids, enzymes or lactic-acid-producing bacteria are added. Liquefaction is then provoked by the action of enzymes from the fish [5]. The final product or silage, is a potential source of lipids and proteins.…”

“…Microbial growth is inhibited by maintaining low pH values. According to many authors, in addition to promoting autolysis and pH reduction, the addition of acid generates a stable product free from pathogenic microorganisms [4,5,8,9]. The majority of the published literature employs silage as a protein source for animal feed and discards the oily fraction in order to increase the stability of the protein product [8,9].…”

Development, Preservation, and Chemical and Fatty Acid Profiles of Nile Tilapia Carcass Meal for Human Feeding*

“…Currently, more and more research are focused on seeking alternatives to minimize and to use efficiently the wastes generated during fish processing (Vieira et al . 2008; Arruda et al . 2009; Godoy et al .…”

Caracterização e aproveitamento do resíduo de pescado junto aos principais pontos de comercialização da Baixada Santista - SP

“…A produção de farinha é uma das principais formas de aproveitamento dos resíduos de pescado, embora também possa ser produzida a partir de peixes inteiros. Fonte de proteínas de alto valor biológico, ácidos graxos essenciais, sais minerais e vitaminas, a farinha de pescado é considerada a principal fonte de proteína dietética empregada no enriquecimento de produtos para alimentação humana e animal, atuando também como palatabilizantes (MORAIS et al, 2001;PESSATTI, 2001;ARRUDA et al, 2009;FELTES et al, 2010;GODOY et al, 2010).…”

“…Para aproveitamento na alimentação animal, os estudos priorizam a avaliação do desempenho e digestibilidade dos nutrientes em animais alimentados com dietas à base de resíduos de peixes (YAMAMOTO et al, 2007;ABIMORAD et al, 2009;ARRUDA et al, 2009).…”